Is acid rain dissolving a statue weathering erosion or deposition

Modify the equation fδt=δ (mv) to find the force of friction.

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.

What is a carrier wave and how does it affect what you hear on the radio